暂存

vendor/illuminate/container/Attributes/Bind.php

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+<?php
+
+namespace Illuminate\Container\Attributes;
+
+use Attribute;
+use InvalidArgumentException;
+use UnitEnum;
+
+use function Illuminate\Support\enum_value;
+
+#[Attribute(Attribute::TARGET_CLASS | Attribute::IS_REPEATABLE)]
+class Bind
+{
+    /**
+     * The concrete class to bind to.
+     *
+     * @var class-string
+     */
+    public string $concrete;
+
+    /**
+     * The environments the binding should apply for.
+     *
+     * @var non-empty-array<int, string>
+     */
+    public array $environments = [];
+
+    /**
+     * Create a new attribute instance.
+     *
+     * @param  class-string  $concrete
+     * @param  non-empty-array<int, \UnitEnum|non-empty-string>|non-empty-string|\UnitEnum  $environments
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function __construct(
+        string $concrete,
+        string|array|UnitEnum $environments = ['*'],
+    ) {
+        $environments = array_filter(is_array($environments) ? $environments : [$environments]);
+
+        if ($environments === []) {
+            throw new InvalidArgumentException('The environment property must be set and cannot be empty.');
+        }
+
+        $this->concrete = $concrete;
+
+        $this->environments = array_map(
+            fn ($environment) => enum_value($environment),
+            $environments,
+        );
+    }
+}